Hey Andres, my strategy has generally been to use plan ahead to generate a ucf file, which I then place in data/ system.ucf. then re run the tools for edk ise bitgen.
Works consistently for me On Nov 22, 2013 11:31 AM, "Andres Alvear" <[email protected]> wrote: > Hi everyone, > > I'm working on Speed Optimization with PlanAhead, I've a Simulink design > of a Spectrometer of 2048-channels and 2 ADCs ADC083000 to 1GSPS in > interleaved mode, and I want to meet a time optimization increasing the > bandwidth to 1GHz from the actual 500MHz and of course increase the numbers > of channels at least to 4096, but with the conventional tool flow is > impossible. > > First thing I told the system I wanted it to go to at 250 MHz, but my > actual clock rate is about 120MHz too low!! However the system is working > stable until 125MHz, so I can setup the ADC clock rate to 500MHz to have > 1GSPS getting a 500MHz of bandwidth to each ADC. > > So I have been working on PlanAhead in a Floorplanning optimization the > hardware implemented in the FPGA Virtex-5 SX95T, but after make the > floorplanning edit my constraint file like Ryan Monroe say in his last > memo. I got a 23% of Speed optimization from 120MHz to 148MHz, but I need > meet time at least to 200MHz. However I have problems generating functional > borph executables, and I'm hoping someone can help me figure out why. Since > I'm targeting high speeds. This one is the error from Borph when I try to > run from a ssh session: > > root@roach:/boffiles# ./system_2.bof > > -bash: ./system_2.bof: Input/output error > > Then in a ipython 2.7 terminal to check if you managed to connect to your > ROACH: > > In [9]: fpga.is_connected() > > Out[9]: True > > Let's set the bitstream running using the progdev() command: > > In [10]: fpga.progdev('system_2.bof') <-----------generated from mkbof > > Out[10]: 'ok' > > See the ROACH and the leds not blinking. I placed these ones to see the > working of my design, but these both not blinking at all: led0_sync, > led1_new_acc. > > > Do you think that I am in the right the way? Does anyone know something > about these problems? > > > Cheers! > > Andres Alvear >
